Display control device, display control method, non-transitory computer-readable recording medium, and electronic device

Abstract

Included are a list display instructor for causing a display to display an at-a-glance list including a plurality of items representing information to be provided to a user; a position acquisitor for acquiring a position of an input unit movably provided on the display; a size controller for calculating an amount of alteration in size of a display region of each item in the list displayed on the display in response to change in position of the input unit when the position of the input unit, which has been acquired by the position acquisitor, is changed; and a display alteration instructor for altering the size of a display region of each item in the list displayed on the display on the basis of the calculated amount of alteration in size of the display region of each item.

1 . A display control device comprising:
 processing circuitry to   cause a display to display an at-a-glance list including a plurality of items representing information to be provided to a user;   acquire a position of an input unit movably provided on the display;   calculate an amount of alteration in size of a display region of each item in the list displayed on the display in response to change in position of the input unit when the acquired position of the input unit is changed;   alter the size of a display region of each item in the list displayed on the display on a basis of the calculated amount of alteration in size of the display region of each item; and   determine whether the acquired position of the input unit is at an operation guide display position,   wherein, when the processing circuitry determines that the input unit is at the operation guide display position, the processing circuitry causes the display to display a prospective operation content to be executed next.   
     
     
         2 . The display control device according to  claim 1 ,
 wherein the processing circuitry further calculates an amount of change in position of the input unit when the acquired position of the input unit is changed,   wherein the processing circuitry calculates an amount of alteration in size of a display region of each item in the list displayed on the display on a basis of the calculated change amount.   
     
     
         3 . The display control device according to  claim 1 ,
 wherein, when the acquired position of the input unit is changed, the processing circuitry calculates an amount of alteration in size of a display region of each item in the list displayed on the display on a basis of the position of the input unit.   
     
     
         4 . The display control device according to  claim 1 ,
 wherein the processing circuitry further determines an amount of alteration in an amount of information on each item in the list displayed on the display on a basis of the calculated amount of alteration in size of the display region of each item,   wherein the processing circuitry alters an information amount in a case of displaying information on each item in the list on the display region of each item in the list on a basis of the determined amount of alteration in the information amount.   
     
     
         5 . The display control device according to  claim 1 ,
 wherein the processing circuitry continuously calculates an amount of alteration in size of a display region of each item in the list displayed on the display in response to change in position of the input unit.   
     
     
         6 . The display control device according to  claim 1 ,
 wherein the processing circuitry calculates, in stages, an amount of alteration in size of a display region of each item in the list displayed on the display in response to change in position of the input unit.   
     
     
         7 . The display control device according to  claim 1 ,
 wherein the processing circuitry determines whether the acquired position of the input unit is at a screen switching position farther than the operation guide display position when viewed from a midpoint position in a movable range of the input unit, and   when the processing circuitry determines that the input unit is at the screen switching position, the processing circuitry switches a screen of the display to a screen indicating determination of execution of the prospective operation content.   
     
     
         8 . The display control device according to  claim 1 ,
 wherein the operation guide display position includes a first operation guide display position and a second operation guide display position, and   the processing circuitry causes different prospective operation content to be displayed between in a case where the processing circuitry determines that the input unit is at the first operation guide display position and in a case where the processing circuitry determines that the input unit is at the second operation guide display position.   
     
     
         9 . The display control device according to  claim 1 ,
 wherein the processing circuitry causes display to be performed in such a manner that a size of a region for displaying the prospective operation content is gradually increased on a basis of the position of the input unit.   
     
     
         10 . The display control device according to  claim 1 ,
 wherein the input unit is rotatable for moving a cursor displayed on the display,   the processing circuitry further   acquires a rotation angle of the input unit;   alters a movement threshold of a rotation angle for calculating an amount of movement of the cursor in response to change in position of the input unit; and   calculates the amount of movement of the cursor on a basis of the acquired rotation angle and the altered movement threshold, and   the processing circuitry causes the cursor to be displayed at a position to which the cursor has been moved on a basis of the calculated movement amount.   
     
     
         11 . The display control device according to  claim 1 ,
 wherein the processing circuitry further   acquires information on whether the input unit has detected a hand of a user,   wherein, when the processing circuitry acquires information that the input unit has detected the hand of the user, the processing circuitry causes the display to display the list, and   when the processing circuitry acquires information that the input unit has not detected the hand of the user, the processing circuitry causes the display to display information other than the list.   
     
     
         12 . The display control device according to  claim 1 ,
 wherein a movement direction of the input unit for altering a size of a display region of each item in the list and an alteration direction in which the processing circuitry alters the size of a display region of each item in the list are orthogonal on the display.   
     
     
         13 . A display control method comprising:
 causing a display to display an at-a-glance list including a plurality of items representing information to be provided to a user;   acquiring a position of an input unit movably provided on the display;   calculating an amount of alteration in size of a display region of each item in the list displayed on the display in response to change in position of the input unit when the acquired position of the input unit is changed;   altering the size of a display region of each item in the list displayed on the display on a basis of the amount of alteration in size of the display region of each item, which has been calculated by the size control unit;   determining whether the acquired position of the input unit is at an operation guide display position; and   causing the display to display a prospective operation content to be executed next when determining that the input unit is at the operation guide display position.   
     
     
         14 . A non-transitory computer readable recording medium having stored thereon a display control program to be executed on a computer, the display control program causing the computer to perform:
 displaying an at-a-glance list including a plurality of items representing information to be provided to a user on a display;   acquiring a position of an input unit movably provided on the display;   calculating an amount of alteration in size of a display region of each item in the list displayed on the display in response to change in position of the input unit when the position of the input unit is changed;   altering the size of a display region of each item in the list displayed on the display on a basis of the calculated amount of alteration in size of the display region of each item;   determining whether the acquired position of the input unit is at an operation guide display position; and   displaying a prospective operation content to be executed next on the display when the input unit is determined to be at the operation guide display position.   
     
     
         15 . An electronic device comprising:
 the display control device according to  claim 1 ;   the display; and   the input unit.